fix: Preserve decorated symbol types in docs_group and docs_name

src/apify/_utils.py

@@ -85,7 +85,7 @@ def is_running_in_ipython() -> bool:
 ]
 
 
-def docs_group(group_name: GroupName) -> Callable:  # noqa: ARG001
+def docs_group(group_name: GroupName) -> Callable[[T], T]:  # noqa: ARG001
     """Mark a symbol for rendering and grouping in documentation.
 
     This decorator is used solely for documentation purposes and does not modify the behavior
@@ -98,13 +98,13 @@ def docs_group(group_name: GroupName) -> Callable:  # noqa: ARG001
         The original callable without modification.
     """
 
-    def wrapper(func: Callable) -> Callable:
+    def wrapper(func: T) -> T:
         return func
 
     return wrapper
 
 
-def docs_name(symbol_name: str) -> Callable:  # noqa: ARG001
+def docs_name(symbol_name: str) -> Callable[[T], T]:  # noqa: ARG001
     """Rename a symbol for documentation rendering.
 
     This decorator modifies only the displayed name of the symbol in the generated documentation
@@ -117,7 +117,7 @@ def docs_name(symbol_name: str) -> Callable:  # noqa: ARG001
         The original callable without modification.
     """
 
-    def wrapper(func: Callable) -> Callable:
+    def wrapper(func: T) -> T:
         return func
 
     return wrapper

tests/unit/test_utils.py

@@ -1,11 +1,12 @@
 from __future__ import annotations
 
 from enum import Enum
+from typing import TYPE_CHECKING
 from unittest.mock import patch
 
 import pytest
 
-from apify._utils import get_system_info, is_running_in_ipython, maybe_extract_enum_member_value
+from apify._utils import docs_group, docs_name, get_system_info, is_running_in_ipython, maybe_extract_enum_member_value
 
 
 def test_ipython_detection_when_active() -> None:
@@ -54,3 +55,30 @@ def test_maybe_extract_enum_member_value_with_non_enum() -> None:
     assert maybe_extract_enum_member_value('hello') == 'hello'
     assert maybe_extract_enum_member_value(42) == 42
     assert maybe_extract_enum_member_value(None) is None
+
+
+if TYPE_CHECKING:
+    # Regression guard: if `docs_group`/`docs_name` stop being identity-typed (`Callable[[T], T]`),
+    # the decorated classes degrade to `Unknown`, the accesses below stop erroring, and the
+    # then-unused suppressions fail the type check (`unused-ignore-comment = "error"`).
+
+    @docs_group('Actor')
+    class _DocsGroupDecorated:
+        pass
+
+    @docs_name('Renamed')
+    class _DocsNameDecorated:
+        pass
+
+    _ = _DocsGroupDecorated.nonexistent  # ty: ignore[unresolved-attribute]
+    _ = _DocsNameDecorated.nonexistent  # ty: ignore[unresolved-attribute]
+
+
+def test_docs_decorators_return_original_object() -> None:
+    """Test that `docs_group` and `docs_name` return the decorated object unchanged."""
+
+    class Sample:
+        pass
+
+    assert docs_group('Actor')(Sample) is Sample
+    assert docs_name('Renamed')(Sample) is Sample